Promise.resolve().then(() => {
    console.log('1'); //1
    throw 'Error';
}).then(() => {
    console.log('2');
}).catch(() => {
    console.log('3'); //2
    throw 'Error';
}).then(() => {
    console.log('4');
}).catch(() => {
    console.log('5'); //3
}).then(() => {
    console.log('6'); //4 没有错误了 继续往下执行了
});
